I think the Sonos system looks fantastic, and I agree that it's worth the cost, especially the standalone speaker products (I think the Connect:Amp is a little pricey at $500).

The main problem I have with Sonos is it seems to force you to change your behavior to work with their systems, rather than let you tailor their systems to your behaviors. For example, about half of the audio listening I do is podcasts. From what I've been reading, the Sonos system is pretty awful at podcasts, and there's no great way to simply play the audio from my favorite podcast app on Android (Doggcatcher) through the Sonos system from anywhere in the house. I'd have to connect to a bluetooth receiver attached to the audio in jack on a Connect and be near it. That makes it a tough purchase for me, but I'll still recommend it for others, depending on their needs.